An African penguin chick chirps as it's examined by aquatic biologist Pam Schaller at the Steinhart Aquarium in San Francisco, CA on 4/15/06. The baby chick was born on Thursday, April 13, from an egg conceived by Tag and Agulhas, two penguins that were brought in from New England as part of the aquarium's captive breeding program. The egg was incubated by surrogate parents Dassen and Grendel so Tag and Agulhas can lay another egg. The chick is the first penguin to be hatched at Steinhart since 1998 and the raises the population to ten. The aquarium is hoping to increase the penguin population to 18 by the time it returns to the rebuilt facility in Golden Gate Park in 2008. PAUL CHINN/The Chronicle less

An African penguin chick chirps as it's examined by aquatic biologist Pam Schaller at the Steinhart Aquarium in San Francisco, CA on 4/15/06. The baby chick was born on Thursday, April 13, from an egg conceived ... more

Photo: PAUL CHINN

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Photo: PAUL CHINN

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Sneaking a peek at new chick

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Four adult African penguins, left, gather around a hutch on Saturday, where a chick is being raised by surrogate parents at the Steinhart Aquarium in San Francisco. The baby chick, above, was born last week from an egg conceived by two penguins that were part of the aquarium's captive breeding program.